China
Africa
Explore chapters and articles related to this topic
World Age Distribution and Sustainability
Published in Gregory T. Haugan, The New Triple Constraints for Sustainable Projects, Programs, and Portfolios, 2016
Analysis of age distributions is important since there are many significant changes occurring both in the United States and the world Increasing median age is expected as the demographic transition Stage III progresses An age structure diagram, also called a population pyramid, is a graphic that shows the distribution of various age groups in a human population (typically that of a country or region of the world), which ideally forms the shape of a pyramid when the region is healthy. That is, a large number of workers support a much lower number of senior citizens.
Tsunami evacuation analysis in the urban built environment: a multi-scale perspective through two modeling approaches in Viña del Mar, Chile
Published in Coastal Engineering Journal, 2020
Jorge León, Sebastián Castro, Cyril Mokrani, Alejandra Gubler
Second, comparison (iii) above shows that, at the larger point of view of the meso-agent-based and the macro-LCD models, the results have limited differences (in the range of 60–70 seconds for long evacuation routes). Besides the differences between the calculation algorithms, these values might be also strongly dependent on the assumed pedestrian speeds. While the LCD model considered a uniform speed of 1.34 m/s, in the meso-agent-based model the average speed of 1.38 m/s was determined by the city’s age population pyramid, through the Buchmüller and Weidmann (2006) distribution (in Viña del Mar, roughly 50% of the inhabitants should have a pedestrian speed above 1.34 m/s).
Modelling job rotation in manufacturing systems with aged workers
Published in International Journal of Production Research, 2021
Lucia Botti, Martina Calzavara, Cristina Mora
The workforce ageing phenomenon and the inverted population pyramid are the cause of important changes to society and industry (Gonzalez and Morer 2016). These changes comprise the inclusion of older workers in industrial processes and the challenge to adapt the work environment accordingly to their needs and capacities. Moreover, the greater involvement of older workers is one of the main pillars of the Europe 2020 Strategy (European Commission 2010).